A Sweet Manhattan served on-the-rocks with added herbal complexity and an all-important splash and dash or two of New Orleans bitters.
Driven by comments...
I love this, made it using the exact ingredients suggested here. It is incredibly complex and changes flavour as you take each sip and seriously shows off the quality of the cognac and rye. I used the 30ml of each recipe but still with 2 dashes of Peychaud's as I'm not keen on Benedictine overpowering a drink.